fix #16: only first occurrence of a match group parameter is replaced
Merge branch 'master' of https://github.com/GMOD/GBrowse
Merge branch 'master' of https://github.com/GMOD/GBrowse
Merge branch 'master' of https://github.com/GMOD/GBrowse
Merge branch 'master' of https://github.com/GMOD/GBrowse